Explain how Clearways are used.

• A. Clearways end of a runway suitable for use in calculating aircraft takeoff performance
• B. Clearways are used for obstacle clearance during approach
• C. Clearways serve as a taxiway shoulder
• D. Clearways are used exclusively for braking tests

Answer: (A)

Clearways are defined as a cleared, obstacle-free area beyond the end of the runway that can be used in takeoff performance calculations. The main purpose is to provide extra distance for an aircraft to accelerate to takeoff speed and to climb, especially in the event of an engine failure after V1. Because of this, takeoff distance available (TODA) effectively includes the runway length plus the clearway, helping determine whether the aircraft can safely take off at a given weight and conditions. This concept is specific to takeoff performance and is not used for approach obstacle clearance, taxiway use, or braking tests.